A self-repairable slow-discharge air valve

Abstract

The invention discloses a self-maintenance slow-discharge air valve, which comprises a valve body, a valve stem, a connecting plate and a top plate. The left and right connecting pipes are respectively welded and connected to the left and right sides of the valve body, and the valve The inside of the body is provided with a flow channel, and a filter screen is installed on the left side of the inside of the flow channel, and a baffle is provided above the inside of the flow channel, and the front side of the rack is meshed with a connecting gear, and the inside of the connecting gear A rotating shaft runs through, the top plate is connected to the top of the valve body, and a fixing hole is opened inside the connecting plate. The self-repairable slow-discharge air valve has a filter on the left side of the flow channel, so that when the water circulates, it can filter and intercept the impurities contained in the water, ensuring the later use of water and improving the efficiency of the water. The flexibility of the air valve, and the bolted connection between the filter screen and the flow channel, when the filter screen is damaged, it is easy to disassemble and replace, which brings convenience to the operation of the staff.

Description

technical field [0001] The invention relates to the technical field of air valves, in particular to a self-repairable slow-discharge air valve. Background technique [0002] The air valve is a special valve used to prevent the transient process decompression wave from causing negative pressure in the pipe. When the pressure in the pipe is lower than the atmospheric pressure, the air is sucked in, and when the pressure in the pipe rises above the atmospheric pressure, the air is discharged. Usually dissolved in water There is a certain amount of gas, and some gas is brought into the pipeline with the water flow during the water delivery process. These gases are mixed in the water flow and released gradually, accumulating at the top of the pipe, which will easily increase additional losses during the water delivery process. Therefore, the gas must be discharged through the air valve in time, and the slow discharge air valve is only one type of air valve. [0003] However, the...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a slow discharge air valve that can be repaired by itself, to solve the problem that the air valves currently on the market proposed by the above-mentioned background technology are not convenient to filter the passing water, and have no function of filtering treatment, resulting in impurities in the water It will flow together with the water, which affects the subsequent use of water, and it is not convenient to perform maintenance operations when the air valve is blocked and cannot discharge the gas. The workload of the staff is also reduced on the issue of the availability of the air valve

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